Finding the Fourth Proportional to 3,148,678.37, 4,720,826.17 and 1,395,005.09
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Solution
The fourth proportional to 3,148,678.37, 4,720,826.17 and 1,395,005.09 is: 2,091,536.75
Step by Step Solution
- Step 1: Write the proportion equation
3,148,678.37 : 4,720,826.17 = 1,395,005.09 : x - Step 2: Convert to fraction form
3,148,678.37/4,720,826.17 = 1,395,005.09/x - Step 3: Cross multiply
3,148,678.37x = 4,720,826.17 × 1,395,005.09 - Step 4: Simplify right side
3,148,678.37x = 6,585,576,536,155.21 - Step 5: Solve for x
x = 6,585,576,536,155.21/3,148,678.37 - Step 6: Final answer
x = 2,091,536.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.